Behind Locked Doors ~ GakuKaru (Yandere!Boy x Boy)

*Credit to the one that wrote the oneshot that inspired this (tagging you in the book)! You can find it on their book Assassination Classroom Yandere One-shots!*
Asano Gakushuu's been obsessed with the notorious Akabane Karma ever since the third year of Junior High, when Class-E was at its best with the arrival of a certain artificial being. And since then, he's been willing to do just about anything to obtain him. Even if it means hurting anyone around them or even Karma himself.
"...you'll be MINE, even if you don't want to be."
WARNING: Contains very heavy smut and some triggering themes. Please read with caution!